4QGV

Crystal structure of the R132K:R111L mutant of Cellular Retinoic Acid Binding ProteinII complexed with a synthetic ligand (Merocyanine) at 1.73 angstrom resolution.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

"Turn-on" protein fluorescence: in situ formation of cyanine dyes.

Yapici, I.Lee, K.S.Berbasova, T.Nosrati, M.Jia, X.Vasileiou, C.Wang, W.Santos, E.M.Geiger, J.H.Borhan, B.

(2015) J Am Chem Soc 137: 1073-1080

  • DOI: 10.1021/ja506376j
  • Primary Citation of Related Structures:  
    3FEP, 4QGV, 4QGW, 4QGX

  • PubMed Abstract: 
  • Protein reengineering of cellular retinoic acid binding protein II (CRABPII) has yielded a genetically addressable system, capable of binding a profluorophoric chromophore that results in fluorescent protein/chromophore complexes. These complexes exh ...

    Protein reengineering of cellular retinoic acid binding protein II (CRABPII) has yielded a genetically addressable system, capable of binding a profluorophoric chromophore that results in fluorescent protein/chromophore complexes. These complexes exhibit far-red emission, with high quantum efficiencies and brightness and also exhibit excellent pH stability spanning the range of 2-11. In the course of this study, it became evident that single mutations of L121E and R59W were most effective in improving the fluorescent characteristics of CRABPII mutants as well as the kinetics of complex formation. The readily crystallizable nature of these proteins was invaluable to provide clues for the observed spectroscopic behavior that results from single mutation of key residues.


    Organizational Affiliation

    Department of Chemistry, Michigan State University , East Lansing, Michigan 48824, United States.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cellular retinoic acid-binding protein 2AB137Homo sapiensMutation(s): 2 
Gene Names: CRABP2
Find proteins for P29373 (Homo sapiens)
Explore P29373 
Go to UniProtKB:  P29373
NIH Common Fund Data Resources
PHAROS  P29373
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
LMC
Query on LMC

Download CCD File 
A
(2E,4E,6E)-3-methyl-6-(1,3,3-trimethyl-1,3-dihydro-2H-indol-2-ylidene)hexa-2,4-dienal
C18 H21 N O
UGINWNVBXWWHCS-RZZAMGAFSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.199 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 34.785α = 104.53
b = 37.34β = 106.04
c = 60.091γ = 90.87
Software Package:
Software NamePurpose
HKL-3000data collection
MOLREPphasing
PHENIXrefinement
HKL-3000data reduction
HKL-3000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-01-28
    Type: Initial release
  • Version 1.1: 2015-02-11
    Changes: Database references
  • Version 1.2: 2017-11-22
    Changes: Refinement description
  • Version 1.3: 2020-09-09
    Changes: Database references, Derived calculations, Structure summary